Die.



NITED sTATEs PATENT clarion.

JOHN ROTH, OFJJERSEY CITY HEIGHTS, NEW JERSEY DIE'.

Specification of Letters Patent.

Patented May 15, i906.

To @ZZ whom it may concern:

Beit known that I, JOHN ROTH, a subject o f the German Emperor, residingin Jersey City Heights, in the county of Hudson and State of New Jersey,have invented certain new and useful Improvements in Dies, of which thefollowing is a specification.

In making cast-metal dies for stamping ornamental metallic articles thedie is usually cast in one block of steel or other metal. This risobjectionable, for the reason that the more delicate impressions in thedie are not vreproduced clearly and have to be finished by hand beforeusing the die and that the die being cast in one block has small defectsin its surface and is expensive, owing to the large quantity of metalrequired for the same.

The object of my invention is to furnish an improved die or mold inwhich the body of the die-block is made of cheaper metal, while the dieproper is cast in a separate piece of harder metal and secured into thedie-block, so that the same form one structure. This permits the castingof a Vdie with all the delicate impressions of the article to beproduced by the same, reduces the expense of the die material, andfurnishes much better and more ornamental impressions. l

With these ends in view the invention consists in the novel features andcombinations of parts, to be hereinafter described and claimed.

In the accompanying drawings, Figure 1 is a perspective view of myimproved die, and Fig. 2 is a vertical central section of Fig. 1. t

Similar letters of reference indicate correspondin parts. l

In ma (ing my improved die the main portion or body B of the die-blockis made of cheaperv metal and provided in its top surv face with arecess which corresponds to the general shape of the die D, that is tobe used in connection'with the die-block B, and said recess is providedwith small sockets or cavities, as shown. The die D is cast separatelyfrom the main portion B, with the proper ornamentation on the face ofthe same, so as be used for stamping the, ornamental articles from thesame, and provided at its under side with projections or with smallcavities or sockets. The under side of the die corresponds with therecess in the top of the dieblock B, so as to leave a space between thesame, which for attaching the die D to the block Bis filled up withmetal m through a casting-hole at one point of the circumference of thedie, as at t in Fig. 1, so as to lill the cavity between the die-blockand die and all the small cavities in order to form a connectedstructure between the die-block and die. The upperedge of the dieproper, however, abuts throughout the perimeter of the same, except atthe casting-hole t, against that of the recess in the die-block, so thatthe fusivble metal does not extend quite to the upper surface of thedie-block, and therefore forms no part of the upper surface of the diestructure. The circumference of the die D is pref erably provided withan undercut, sol as to provide a means for firmly holding the die in thedie-block B.

The die D being of even thickness and smaller in size remains true toitsshape and reproduces all the finer parts of the original, so that butlittle hand-work is required for completing the same. It is made ofsuperior metal or alloys-such as nickelesteel, aluminium or siliciumbronze, and the like-by which a more durab'le die is obtained and bywhich the ornamentation can be reproduced in the article to be stampedby the die in a superior manner. When the dieblock and die are unitedinto one structure by the interh mediate layer of cast metal, the die isready for use. As the die-block is made of cheaper metal, the die can befurnished at much less expense than the dies heretofore in use. Itpossesses a forming-surface of superior quality by which the ornamentalarticles can be stamped out in a quicker and more satisfactory mannerthan by the ordinary cast dies heretofore in use.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- A die comprising a die-,block provided With a toprecess, a die proper seated in said recess and abutting at its upperside edge substantially throughout its perimeter against the IOO upperedge of said recess7 said die being unmy invention I have signed my namein presdercut at its circumference, and a layer of ence of tWosubscribing Witnesses. fusible metal between the side and bottom of saiddie and the side and bottom of said JOHN ROTH' 5 recess for uniting saiddie and die-block in Witnesses:

one structure. PAUL GOEPEL,

In testimony that I claim the foregoing as HENRY J. SUHRBIER.

